目的 通过典型案例剖析,探讨德尔格Savina 300呼吸机使用中氧浓度监测模块常见故障原因及维修方法,以保障医疗设备稳定运行。方法 采用案例分享方式,针对3个典型氧浓度监测故障案例,从故障现象入手,分析故障原因,再按故障处理步骤逐一解决。在维修过程中,运用维修模式检测,快速定位问题;采用逐步排除法,缩小故障范围;必要时进行零部件替换,确保设备恢复正常。结果 经实践发现,氧浓度监测故障多与气路密封性、氧阀组件和传感器相关。依据气路图逐一排查并排除,能成功解决不同故障问题。3个案例均通过此方法得到有效修复,使呼吸机氧浓度监测功能恢复正常。结论 呼吸机维修需注重实际经验积累与分享,维修人员应掌握电路、气路等多方面技能,做到精而专,才能确保医疗设备可靠运行,为患者安全提供有力保障。

Objective To analyze the common fault causes and maintenance methods of the oxygen concentration monitoring module of Drager Savina 300 ventilator by studying typical cases to ensure the stable operation of medical equipment. Methods The process of case sharing involved ameticulous examination of each of the three cases, starting from the identification of fault phenomenon, followed by a systemic analysis of underlying fault causes, culminating in a step-by-step resolution according to established fault handling procedures. During maintenance, the maintenance mode detection was used to quickly locate problems; the step-by-step elimination method was adopted to narrow fault range; when deemed necessary, parts were replaced to ensure the restoration of equipment functionality. Results Oxygen concentration module faults were mostly related to air circuit tightness, oxygen valve components, and sensors. Checking and eliminating them one by one according to the air circuit diagram successfully solved different fault problems. All three cases were effectively repaired by this method, restoring the normal oxygen concentration monitoring function of the ventilator. Conclusion Ventilator maintenance requires accumulation and sharing of practical experience. Maintenance personnel should master various skills related to circuits and air circuits, and be proficient and specialized to ensure the reliable operation of medical equipment and provide strong guarantee for patient safety.